The bed bug is more of an inconvenience than it is a danger to the human body. Though it has been observed that the bed bug can bring out an allergic reaction that can be serious to some people. According to Green Heat SD, the bed bug carries over 35 human diseases but they are not known to be spread to the human body. If you are bitten by a bed bug it can lead to excessive itching which can turn into a secondary skin infection. The main reason this happens is if you excessively scratch the area and damage your skin. You can also experience a loss of sleep, but this is usually due to anxiety from the bed bugs being present and not the actual bite itself.
When the bed bug bites you it will inject anticoagulant and anesthetic at the same time which means you will not feel the bed bug bite for a day to a few days later. If you see red, swollen bumps similar to what a mosquito bite would look then it is probably a bed bug bite. They will usually show up on your face, hands, arms or neck, but are not limited to these areas. The most important thing to remember is to not try and scratch the area where you have been bitten. By scratching the bite it will only further irritate it and could lead to a secondary infection.